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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 ((Transmission Control Module (TCM) - Electrical Diagnostics - As68RC Automatic Transmission)) >> Diagnosis and Testing >> P1679-Calibration Not Learned >> Theory of Operation

Theory of Operation

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The Transmission Control Module (TCM) needs to learn certain values to properly control Transmission operation. This DTC indicates that these values are not currently learned in the TCM. If the TCM or Transmission is replaced, the Quick Learn Procedure must be performed.